Solved
Why has my subscription gone up from £14.40 to £36?
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Hi lzmcivor,
It's likely that a promotional discount offer has expired and you are now being billed at the normal subscription rate, the current price of QuickBooks Online Plus is £30 + 20% VAT.
All subscription details will show on your latest billing invoice which can be viewed by going to the Cog > Account & settings > Billing & subscriptions - please get back to us below if you have any Q's on this.
Thanks!